An MCS moving through Iowa initiated isolated severe thunderstorms along its outflow boundary during the early afternoon hours.  The intense line of storms on the south end of the MCS bowed out as it reached southeast Iowa and raced into west central Illinois and far northeast Missouri.

Thunderstorm Wind in JEFFERSON, IOWA
From 08-SEP-05 13:05:00 to 08-SEP-05 13:05:00 (CST)
Location: PACKWOOD
Magnitude: 52 EG
Property damage: 5K
Reported by: EMERGENCY MANAGER

6 inch diameter limbs down

Hail in JEFFERSON, IOWA
From 08-SEP-05 13:05:00 to 08-SEP-05 13:05:00 (CST)
Location: PACKWOOD
Magnitude: 1.75 
Property damage: 10K
Reported by: EMERGENCY MANAGER

Nickel to golfball sized hail

Thunderstorm Wind in JEFFERSON, IOWA
From 08-SEP-05 13:25:00 to 08-SEP-05 13:25:00 (CST)
Location: FAIRFIELD
Magnitude: 50 EG
Property damage: 5K
Reported by: BROADCAST MEDIA

Branches down along with pea sized hail and water ponding on roads

Heavy Rain in WASHINGTON, IOWA
From 08-SEP-05 13:50:00 to 08-SEP-05 14:15:00 (CST)
Location: WASHINGTON
Magnitude: 0.70 
Reported by: TRAINED SPOTTER

0.70 inch of rain in 25 minutes

Thunderstorm Wind in VAN BUREN, IOWA
From 08-SEP-05 14:25:00 to 08-SEP-05 14:30:00 (CST)
Location: KEOSAUQUA
Magnitude: 52 EG
Property damage: 3K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in HENRY, IOWA
From 08-SEP-05 14:32:00 to 08-SEP-05 14:42:00 (CST)
Location: MT PLEASANT
Magnitude: 52 EG
Property damage: 4K
Reported by: LAW ENFORCEMENT

Telephone pole snapped with numerous 2 inch diameter limbs down.  Time estimated based on radar.

Thunderstorm Wind in LEE, IOWA
From 08-SEP-05 14:54:00 to 08-SEP-05 14:54:00 (CST)
Location: DENMARK
Magnitude: 57 EG
Property damage: 12K
Reported by: TRAINED SPOTTER

6-10 inch diameter trees down with numerous large branches down.

Thunderstorm Wind in LEE, IOWA
From 08-SEP-05 14:55:00 to 08-SEP-05 14:55:00 (CST)
Location: ARGYLE
Magnitude: 57 EG
Property damage: 15K
Crop damage: 6K
Reported by: OFFICIAL NWS OBS.

From co-op observer. A porch was damaged in Argyle.  A semi truck with an empty trailer stopped on highway 27 just before the storm hit and had its trailer blown over.

Thunderstorm Wind in LEE, IOWA
From 08-SEP-05 15:05:00 to 08-SEP-05 15:13:00 (CST)
Location: KEOKUK
Magnitude: 52 EG
Property damage: 10K
Reported by: TRAINED SPOTTER

Numerous 2 to 4 inch diameter branches down throughout the city.  A ham radio operator lost his antenna.

Thunderstorm Wind in LEE, IOWA
From 08-SEP-05 15:02:00 to 08-SEP-05 15:02:00 (CST)
Location: KEOKUK ARPT
Magnitude: 56 MG
Property damage: 5K
Reported by: AWOS,ASOS,MESONET,ETC

From KEOK AWOS.  KEOK measured a 56 knot (64mph) wind from 1500-1502 CST before power was lost.  KDVN 88D radar data would suggest that severe winds continued for another 8 minutes before ending.

Thunderstorm Wind in DES MOINES, IOWA
From 08-SEP-05 15:03:00 to 08-SEP-05 15:03:00 (CST)
Location: BURLINGTON
Magnitude: 52 EG
Property damage: 15K
Reported by: LAW ENFORCEMENT

Numerous trees and branches down. KBUR radio measured a peak gust at their station of 41 knots (47 mph).  There is also a report of a measured gust of 52 knots (60 mph) on Adams street in Burlington.

Heavy Rain in LEE, IOWA
From 08-SEP-05 15:38:00 to 08-SEP-05 15:38:00 (CST)
Location: KEOKUK
Reported by: TRAINED SPOTTER

Water 6 inches deep on some streets in downtown.

Thunderstorm Wind in DES MOINES, IOWA
From 08-SEP-05 14:55:00 to 08-SEP-05 14:55:00 (CST)
Location: WEST BURLINGTON
Magnitude: 52 EG
Property damage: 4K
Reported by: LAW ENFORCEMENT

Law enforcement estimated wind gusts at 50 to 60 mph.

Thunderstorm Wind in DES MOINES, IOWA
From 08-SEP-05 15:00:00 to 08-SEP-05 15:00:00 (CST)
Location: MIDDLETOWN
Magnitude: 52 EG
Property damage: 3K
Reported by: LAW ENFORCEMENT

Numerous branches down

Thunderstorm Wind in LEE, IOWA
From 08-SEP-05 14:54:00 to 08-SEP-05 14:54:00 (CST)
Location: MONTROSE
Magnitude: 52 EG
Property damage: 7K
Reported by: EMERGENCY MANAGER

Numerous large limbs and trees were downed.  Also, a corn field was flattened on 300th Street just east of Highway 27.

Hail in JEFFERSON, IOWA
From 08-SEP-05 13:05:00 to 08-SEP-05 13:10:00 (CST)
Location: PACKWOOD
Magnitude: 1.00 
Property damage: 6K
Crop damage: 2K
Reported by: LAW ENFORCEMENT

also heavy rain between Pekin and Packwood.